Alert archive / Florida / Flash Flood Warnings in 2009
Flash Flood Warning 45, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Aug 17, 2009, 9:57 AM CDT for Escambia County, Santa Rosa County, Florida; Baldwin County, Alabama. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 17, 2009, 9:57 AM CDT (14:57 UTC)
- Expired
- Aug 17, 2009, 1:45 PM CDT
- In force
- 4 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Baldwin County, AL, Escambia County, FL, Santa Rosa County, FL
The radar
The Mobile radar (KMOB), 103 km from the middle of the area, began a volume at 14:57 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 3.0 hours before the alert went out and 244 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1818 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 562 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- -7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS54 KMOB 171457
FFWMOB
ALC003-FLC033-113-171645-
/O.NEW.KMOB.FF.W.0045.090817T1457Z-090817T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
957 AM CDT MON AUG 17 2009
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EASTERN ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
THIS INCLUDES THE CITY OF NAVARRE...
SOUTHEASTERN BALDWIN COUNTY IN SOUTHWEST ALABAMA...
THIS INCLUDES THE CITY OF LILLIAN...
* UNTIL 1145 AM CDT
* AT 950 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE BEEN
MONITORING HEAVY RAIN ON RADAR OVER PARTS OF SOUTHEAST ALABAMA AND
NORTHWEST FLORIDA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SEMINOLE...
PENSACOLA REGIONAL A/P...PACE...MUNSON...MOLINO...MILTON NEAR
WHITING FIELD...MILTON...MCDAVID...JAY...HAROLD...GONZALEZ...FERRY
PASS...ENSLEY...COTTAGE HILL...CHUMUCKLA...CANTONMENT...BEULAH...
BERRYDALE...BAGDAD AND ALLENTOWN
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THERE IS A HIGH RISK OF RAINFALL RATES OF 2 TO 3 INCHES PER HOUR IN
THE WARNED AREA. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE
FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES.
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF
CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE A VEHICLE INTO
WATER COVERED ROADWAYS. ONLY A FEW INCHES OF FLOWING WATER CAN SWEEP
A VEHICLE OFF THE ROAD. TURN AROUND...DONT DROWN.
&&
LAT...LON 3037 8744 3037 8751 3066 8746 3084 8734
3097 8731 3097 8680 3097 8679 3042 8680
3035 8720 3036 8720 3046 8693 3051 8703
3055 8701 3045 8709 3058 8716 3047 8714
3038 8725 3034 8726 3033 8739
$$1 follow-up statement
000
WGUS54 KMOB 171646
FFWMOB
ALC003-FLC033-113-171845-
/O.EXT.KMOB.FF.W.0045.000000T0000Z-090817T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1146 AM CDT MON AUG 17 2009
THE NATIONAL WEATHER SERVICE IN MOBILE HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
EASTERN ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
SANTA ROSA COUNTY IN NORTHWEST FLORIDA...
EAST CENTRAL BALDWIN COUNTY IN SOUTHWEST ALABAMA...
* UNTIL 145 PM CDT
* AT 1140 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
HEAVY RAIN CONTINUING OVER PARTS OF SOUTHWEST ALABAMA AND NORTHWEST
FLORIDA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PACE...
MUNSON...MOLINO...MILTON NEAR WHITING FIELD...MILTON...MCDAVID...
JAY...HAROLD...GONZALEZ...COTTAGE HILL...CHUMUCKLA...CANTONMENT...
BERRYDALE...BARRINEAU PARK...BAGDAD AND ALLENTOWN
RADAR ESTIMATES INDICATE THAT LOCALLY UP TO 3 TO 4 INCHES OF RAINFALL HAS
OCCURRED OVER PARTS OF THE WARNED AREA SINCE AROUND 9 AM THIS MORNING.
ADDITIONAL HOURLY RAINFALL TOTALS OF 1 TO 2 INCHES COULD BE POSSIBLE
THROUGH THE EARLY AFTERNOON HOURS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE A VEHICLE INTO
WATER COVERED ROADWAYS. ONLY A FEW INCHES OF FLOWING WATER CAN SWEEP
A VEHICLE OFF THE ROAD. TURN AROUND...DONT DROWN.
&&
LAT...LON 3037 8744 3037 8751 3066 8746 3084 8734
3097 8731 3097 8680 3097 8679 3042 8680
3035 8720 3036 8720 3046 8693 3051 8703
3055 8701 3045 8709 3058 8716 3047 8714
3038 8725 3034 8726 3033 8739
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 7:45 PM CDT | Flash Flood Watch | MOB | 23 hr | |
| Aug 16, 8:46 PM CDT | River Flood Warning | MOB | Okaloosa | 24 hr |
| Aug 17, 4:15 AM CDT | Hurricane Local Statement | MOB | 3 hr | |
| Aug 17, 6:17 AM CDT | Flash Flood Warning | MOB | Okaloosa | 5 hr |
| Aug 17, 12:15 AM CDT | Hurricane Local Statement | MOB | Butler, Crenshaw, Monroe | 4 hr |
| Aug 17, 3:12 PM CDT | Coastal Flood Statement | MOB | 3 hr | |
| Aug 17, 4:24 PM CDT | Small Craft Advisory | MOB | 113 min |
Nearby
Flash Flood Warnings in Florida, 2009Flash Flood Warnings in Alabama, 2009Every flash flood warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.